| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve durability of an air cooling/dust removing switching mechanism in a driving part structure of a working vehicle for cooling a radiator, by cooling wind which is filtered by a dust prevention net. <P>SOLUTION: A cooling fan 12 is covered with a cooling fan case A, and a cooling air inlet and a dust removing outlet are provided at a radiator 13 side of the cooling fan case A. A dust removing inlet and a cooling air outlet are provided at an opposite side to the radiator 13 of the cooling fan case A. In an air cooling state, the dust removing inlet and the dust removing outlet are closed, and the cooling air inlet and the cooling air outlet are opened, and air is blown from the cooling air inlet to the cooling air outlet by the cooling fan 12. In a dust removing state, the cooling air inlet and the cooling air outlet are closed, and the dust removing inlet and the dust removing outlet are opened, and air is blown from the dust removing inlet to the dust removing outlet by the cooling fan 12. <P>COPYRIGHT: (C)2012,JPO&INPIT |
